Seaway Notices

Seaway Notices address issues specific to a given navigation season, and serve to complement the regulations found in the Seaway Handbook. The notices (which take the form of general Seaway notices applicable to the entire St. Lawrence Seaway, and regional notices which may be applicable to the Montreal / Lake Ontario region or to the Welland Canal) are disseminated via e-mail broadcasts to subscribers.

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#22 – Critical Areas during High Flows – Revised

August 23, 2017

#21 – Maximum Permissible Draft – Montreal to Lake Ontario

August 11, 2017

#20 – Tug No Longer Available for Assistance at Iroquois Lock

August 11, 2017

#19 – Decreased Outflow – Montreal Lake Ontario Section (Cancelled 2017/08/24)

August 8, 2017

#18 – Tug Available for Assistance at Iroquois Lock – Revised (Cancelled 2017/08/11)

July 24, 2017

#17 – Maximum Permissible Draft – Montreal to Lake Ontario (Cancelled 2017/08/11)

June 27, 2017

#16 – Removal of Restrictions to Ship Inspections

June 23, 2017

#15 – Tug Available for Assistance at Iroquois Lock (Cancelled 2017/07/24)

June 14, 2017

#14 – Transit Requirements under High Flow Conditions (Cancelled 2017/09/15)

June 13, 2017

#13 – Restrictions to Ship Inspections (Cancelled 2017/06/23)

June 13, 2017

#12 – Increased Outflows – Montreal Lake Ontario Section (Cancelled 2017/08/11)

June 13, 2017

#11 – Critical Areas during High Flows (Cancelled 2017/08/23)

June 13, 2017

#10 – Increased Flows – Montreal Lake Ontario Section (Revised) (Cancelled 2017/06/13)

May 19, 2017

#9 – Increased Flows – Montreal Lake Ontario Section (Cancelled 2017/05/19)

May 16, 2017

#8 – Maximum Allowable Drafts – Montreal Lake Ontario Section

March 10, 2017

#6 – Tie-Up Service at Lock Approach Walls

March 10, 2017

#5 – Notification Requirement for Use of Lines at HFM Locks

March 10, 2017

#4 – General Notice

March 10, 2017

#3 – Communications

March 10, 2017

#2 – Mooring and Casting off In Locks

March 10, 2017

#1 – Opening of the 2017 Navigation Season and Maximum Allowable Drafts

February 17, 2017

#11 – Closing of the 2016 Navigation Season

November 18, 2016

#10 – Draft Information System (DIS) Correction

November 9, 2016

#9 – Maximum Permissible Draft – Montreal to Lake Ontario and Welland Canal

October 14, 2016

#8 – Tie-Up Service at Lock Approach Walls

June 23, 2016

#7 – Maximum Allowable Drafts – Montreal Lake Ontario Section

March 17, 2016

#6 – Vessels’ Transits with Draft Information System (DIS)

March 10, 2016

#5 – Notification Requirement for Use of Wires at HFM Locks

March 10, 2016

#4 – General Notice

March 10, 2016

#3 – Communications

March 10, 2016